Vibrating apparatus



" Oct. 28, 1930. J. AQTRAYLOR 9, 5 v

vmwrme krrlgmwus Original Filed July 1? 19%;;

.3 sheets-sheet 2 Inventor m flm mm 5 I Oct. 28,1930. J. A. TRAYLOR' A 1,779,454

VIBRATING APPARATUS Original Filed July 1922 3 Sheets-Sheet. 3

- Fig.8.

Inventor, John A. Traylor';

15 IIIof Fig. i

Patented Oct.- 28, 1930 W es-S ims JOHN A. muse on rrenitfcorionmao, nssierion iro 'rnni rneizmnvmneronoo urAN or DENvEn, coLoneDo, }aconronerron or coLonAno ine Ane -T 1 Applicationfiled iuly"1 2,"1 922, Serial No. 574,498, n ilew e-m h' i1930.

The object of this invention is torovicle a vibrating apparatus erated by a ternating current, 'and applica leto the operation of material -treating elements such as'screens or jaws of ore crushers. f In the accompanying three sheets of drawings which form a part of this specification, F igiu'e -1 is a plan of a screen operated by 'av'ibruting apparatus constructed in accordance with this invention Fig. 2 is a side, levation of the same, the supportin framebcing in section on the line 11-11 of Fig.1.

Fig. 3 is a vertical section on the line III- showing the vibrating apparatus. Fig. tis a-sectionon the line IVIV of Fig.3showingthesame. v

Fig. 5. is adiagram of connections to an alternating and a direct. current source.

F ig. 6 is a'dia gram offa modification in which the connections are to a two=phase 9.1- ternator, p

Fig. 7 is a side elevation showingajseries of screens operated by the same'vibrating apparatus. Fig. 8 is an end elevation of the structure shown in Fig.7, lookin toward th'e righthand end of the latter ure. I

In the form shown in Figs 1 and 2 agscreen 11 is the material treating member to-be vibrated. It'is supported on either side through brackets 12, 12 and elastic rods 13, 13 to the middle points of which the brackets are clamped. The endsof the rods have heads- 14; 1 1 riveted thereto. 'The rods 'pass through the end members of a supporting frame-15.-

At one end the heads engage the outside of the frame, and at the other end the heads 4 engage the ends of tensionin screws 16, 16

which are threaded into one o i lthe endmembers of the frame. The rods. passthrough holes in these screws and the screws are used to tension the rods and adjust their natural period of vibration so that there will be steady action when the current is turned on and the screens are in operation. Loclcnuts 1'? 17secure the screws. I

The screen is vibrated through cooperating magnet members on each side. One of the-co site polarity;

operating miignet members is in the form of a laminated bar magnet 20, and the'other is in theformof an upper laminated U-shaped "magnet 21- and a lower'laminated U-slu pedv magnet 22, these two magnets being disposed on op osite'sides of the ba-r magnet. The U- shape magnet members are supported throughbrackets' 23, 23 from the supportin frame and the laminated bars-are riveted to the brackets which'connect the' 'screen with the elastic rods}; Each of the bar'rnag'nets has a magnetizing coil 24, the'upp er U-'shaped magnets l1ave'magnetizi1'1g coils 2-5; 25 and the lower U-shap ed jma'gnetshave magnetizing'coils 26, 2a

' The coilson one-of the cooperating magnet members are connected to a so'urce or alterhating-current of anyfrequ'ency, but 'it is not essential which set of coils a're'so con- 'nected. IThis 'source, in'the forni-shown in F ig.- 5, is a single phase alternating-current generatorj27, but may 'be" any two leads of any othe'rjform of alternator; and the connection is made through a switch 28 to the upper of the U-shaped magnets and the connection ismade through a switch 29 to the lower of the U-shaped magncts'. lhe connection is such that with a'given' direction of current the poles which a'reon opposite sides of the same end of the bar magnet will be' of oppo- The coils 'on the bar'- magnet are connected to'. a source ofdirect current shown as a direct-currentgenerator 30 through a switch 31.1 The switch-isso made that these coils canbe disconnected from the generator and their terminals short-circuited or closed on each other through a resistance 32which is adjusted to prevent the coils from overheating. In this latter case either the upper or thellower' of the U-shaped magnets should beomitted or its coils not energized, and the vibration is not as forcible as wit-lithe direct current on the bar-magnet coiL' The vibration is stronger, however, than when the :coilson the bar magnet areiomitted, or their circuit 'is open.

In the form of connection shown in Fig.

6 a two 'phase alternating-current generator 33 supplies current, one-phase being through a. switch 34 to the coil of the upper U-shapcd magnet, the same phase being also through a swltch 35 to the coils of the lower-- of the U-shaped magnets, and the other phase being through a switch 36 to the coils of the bar magnet;

Corresponding coils in the vibrating ap-' )aratus on the twosides of the screen should e similarly connected to the source of current, and the connections may be such that they are either in series or parallel with s and 4c, is.

eachother as may be found desirableto prevent overheating or to pass sufiic1eiit'mag netizing current.

In either form-of connections with "all of l the. coils energized as set-forth the-vibrating impulses upward and downward are equal. There are certain conditions, however, when a greater upward or downward force is desirable and'this may be obtainedby' taking advantage of the fact that m netic attraction isgreater than magnetic repulsion.

it. is; desirable-to have the, more forcible stroke upward'into the bed of material to be screened, only, the .upper U-shaped ma net will: be used or itscoils energized'.- n

screening sticky or moist products where it .is desirable. not to force the screen up. into the bed of material to be screened, onlythe lower U:-shaped magnet -will be ,used or its coils energu'zed.

Thecoils of ania: ed-magnetsswill. be energized in the case'o materials which do not require a rapid upsstrokeand-.a retarded down-stroke, orthe reverse.

This apparatus has been found'to give satisfactory results-inwhicli a screen two by three feet 18- supported at the middle points of two tension rods onelinch indiameter nnd five. feet in length usingi-twenty-five to, one hundred cyclejcurrent. oaths-U? shaped magnet andi 'direct current onthe bar magnet. i Improvement over usual screening apparatus results with vibrations in excess of thirty per second, and high frequencies give proportionately better results. It. is not hcnseveral screens are to be vibrated the same apparatus may be used for all. By. a modified construction as shown in Figs. 7 and 8, anuppcr screen 40 and a lower What I claim and ters .Patent is 3 Mechanism for imparting to: and 11110 essential that the tension rods should be of metal.

desire to secure by Let- 1. Mechanism for imparting to and fro movements to a member associated therewith, comprising, cooperating electro-magnetic means, means connectiir' one of said electro-magnetic means with tie member to beoperated, means supporting the other of.

said electro-magnetic means, means for supplying alternating, current toone of sa1d electro magnetic means, and current other than current of the same phase to the other offsaid-means, and means for cutting oii the supply-of current to the last mentioned electro-magnetic means and closing the circuit of the energizing coil thereof.

2; Mechamsmfor imparting to and fro movements to a member associated there- .with, comprising co-operatiug electi e-magnetic means, meansconnecting one; oisaid eleetro-magnetic means with the member to be operated, means supporting-the other of .said elect-ro magnetic means, means for, supplying alternating current toone of said electro-magnetic means, and current otherthan currentiof the same phase to the other of said means,.a resistance, and means for cutting off the supply of currentiothe last mentioned electro-magnetic means and con necting said resistance in the circuit of the energizingcoil thereof.

movements .to a member associated there with, comprising co-operating; electromagnetic means, means connecti ons of saidelectro-mngnetic meanswitlntiemember to be operated,. means supporting, theother of said electron-magnetic means; means for: supplying- 'alternating current. toone ofsaid electro-magnetic' means, and current other than. current oi thesam-e hase to the other of said, means, a-'variab e. resistance,.. and

'means for cutting oil the supply of can rent to thelast mentioned. electro-magnetic means and-Iconnectingsaid resistance iii the circuit of the energizing coilthereof;

in irlechanism for imparting. to and fro n'iovements-to a" member wsociatedtherewitlncomprising an electric-magnet, means -coimecting thesamefWith the member to be operated, other electric-magnets. arrangedon op positelsidcs of the first magnet, means .sup-

porting said other electro-magnels, means for su lvin to said other electro-ma nets i :1, h alternating. currentof the samephase, and to said first magnet current other than current of the same. phase,.and means for cutting off current to. the" first magnet and clos ng'tbe circuit of the energizing coil thereof.

5. Mechanism for imparting to and fro movementsto a member associated there- I with, comprising elastic tension rods, means supporting; the sameat the ends thereof. means connectingthe member to be operated with said rods intermediate theiendsthcreoii, an clectro-mag'net, means connecting the same with the member to be operated, other f.

' electro-magnetsarranged'on opposite sides of the first magnet, means supportingsaid other electroanagnel's and means for supplying to said other electro-ma nets .alternativelyalternating; current ot thesamephase, and direct currentto said firsttmagnet.

- 6. Mechanism for imparting-to and dim movements to'a 'member associated therewith, comprising. a magnetizable element, an

electromagnetic element, means connecting one ot'said elements with the member to be opera ted, means for supporting the other element, means for supplying alternatingcurr rent to said electromagnetic element, an energizing coil on said magnetizable element."

and means operative to connect said coil with a supply of current other than current of the same phase as that suppliedto said electromagnetic-element or toy disconnect said coil from said 'supply a-nd to close the circuit" thereof.

7. Mechanism for. imparting to and fro movements to a member associated. therewith, comprising amagnetizable element, an

electromagnetic element, means connecting one otsaid elements with tllcunember to be operated, means fol-supporting the other ele ment, means tor supplying alternating current to said eleotro-inagnetic element, an'energizing 0011 on said magnetlzable elenient, means operative to connect said'coil with a supply of current other thancurrent of the same phase as that supplied to said eleotro-; magnetic elen'ient' or to disconnect said coil from said supply and to close the circuit thereof, and a resistance included in the.

closed circuit of said coil.

8. Mechanism for imparting to and fro movements to a member associated there'- with, comprising a magnetizable element, an clectro-magnctic element, means connecting one of said elements with the memberto be operated, means for supporting the other element, means for supplying alternating current to said electro-magnetic element, anen-. ergizing 001]. on sald magnetlzable element,-

ineans operative to connect said coil with a supply of current other than current of the same phase as that supplied to said electromagnetic element or to disconnect said coil from said supply and to close the circuit thereof, and a variable resistance included .in the closed circuit of said 0011.

9.:Mechanism for imparting to and fromovement to a member associated therewith,

comprising a magnetizable element, an electromagnet-ic element comprising a pair of electro-magnets located at opposite sides of said magnetizable element, means for connecting one of said elements to the member to be operated, means for supporting the other element, means for supplying alternating current of the same phase to the coils of said magnets, said coils being wound in such manner as torender said magnets of ment, and-a Ymagnetj- 12;..Ina. :vibrat'ing apparatus,*anrelement.

magnetsand said element-and a opposite polarity, acoilhauing a closed cir'- cuit on said anagnetizable element, an d means operative alternatively: to close .the=cir'cuitof said coil, ort'o connect the same with a sup-- ply. of current other'than current of the-same phaso-as-that supplied to saidmagnets.

10. 1111 a'wibrating apparatus,- an element to be? vibratedya tension rod placed under predeterminedtensionto which said element 185 connected,-icooperating. magnets having .ing current to the coils on one of the. cooper- Iatingmagnets, means for'supp'lying current Zother than current of'the same-phase-to the coils of the othermagnet, physical connec- .tions= between one of th'e'cooperating magnets and said-element and a suitable support for the other magnet.

. 11. In a vibrating apparatus, an-elenient to be -vibrated, .a terisioned elastic support. -for sa1delement, cooperating magnets hav ing' coils thereon, means for supplying. alternating currentto the coils on one-of the cooperating magnets, and current other. than current of the same phase to .thelcoils otthe other magnet, phys cal connections between coils thereon, meansfon-supplymg alternatone of the cooperating magnets and said ele suitable '--support .fori the; other to bevibrated, 'tensio'ned :elastic sup ort connections betweenone of t e cooperating:

' 13. In-a. vibrating apparatus, an element to be vibrated, fliliBIlSlOIlCl elastic-support for said element, .two-cooperatingmagnet me'mbers, one of which com risesa pair. of

. opposed magnets and the 0t 18!: of which-is la ma net disposed between thepair of 0p- :pose magnets, coils-on themagnet members, means fonsupplying'. alternating current to the .coils on one ofthecooperating magnet Iphase to the coils .ofthe other mager, physical connections between one of the magnet membe'rsand said element, and a suitable support for the other magnet member.

-14; In a vibrating apparatus, two elements to be vibrated in unison, tensionedelastic supports for each element,;co operat1 ng magnets having rcoilsthereon, means for supply ing alternating current to the .c01ls-. of one of '10s suitable sup ;port .for the. othermagnet-. 2.;

members, and currentother than current of the same .net mem the cooperating magnets, and-current other than cin'rentof the same phase .to'thezcoils of-thecther magnet, physical connections between. one of the cooperating magnets and one of said elements'and physical connectionsbetween the other of the cooperating -magnets and the other element- 15. In a vibrating apparatus, an element to be vibrated, an elastic rod to which said element is connected, power means for -vito move saidmember movements imparted place said'rodnnider a,

metres to move said e ementi in. synchronism withthe' movementsimpartedtheretozbycsaid at a given frequency,

.brating said element,:.and means operative to 1 redeterminedtension,

power means. 1 A 16... In a vibrating. apparatus, .aneele nent toibelvibrated, elastictension rod to which said: element is connected, means; operative tovary the tension *ofsaid; longitudinal tension'rod, ,andpower means iorzvibratingsaid element. I

".17.. In a vibrating apparatus,- an clement tolbe vibrated, an elastic tensionrod to which said element is connected, means for placing said rod under a predetermined long-itiidinal tension, and power -means. operative to eifectpower movementofrsaid element in .two opposite directions.

ISLIn-a vibrating apparatus, an element to-zbenibrated, powermeuns optionally operativet-oefifect power-movement. of saidelement in either of two opposite directions, and

anelastie-tensionmod connected to said ele-.

ment to effect movement thereof-opposite .to and insynchromsm. 'W-I-tll saidpowe-r 'movements.

- 19k In a vibratiiw' apparatiis an element "tobe vibrated, a

vibratory-,tensioned: rod to .chorecl at its ends and ingreciprocatory movements to said member ata given frequency, and avibratory tension element connectedwith said member and adjustedtohavea period of vibration or oscillation synchronous with the-movements imparted to. said member by-said clectro-mag netie means; I y

2t. V ibratingapparatus, comprising a member, electro-magnetic means for impart iii-g vibratory or reciprocatory movements-to z said member at a g1ven frequency, and'a ten-- sion rod anchored at the-ends thereof and connected intermediate its ends to said member, SitlClDOdbeing tensioned to move said member in synchronism with the movements i'mparted thereto by. said electro-magnctic 25. Vibrating apparatus, comprising a member, eleetro-magnetic means for imparting reciprocatorymovements to said member at a given frequency, and a tensionrod anconnectedto said member intermediate itsends, said rod being adjusted to vibrateor oscillate in synchronism with the movements-imparted to the member by said electro-mas netic means.

0 1m -A. TRAYLOR.

which said element is connected, and power means optionally: operativeto efiect power movement of-said: element in either or both of two opposite directlons, in. synclu'onism. with the ribmtory movements of said rod.

205111 a vibrating; apparatus, an element to be vibrated, avi ratory tensioned rod. to which 'said-elementis connected, and electromagnetic means' operable to efiect power movement of said element intwo opposite directions, in synchronism with the vibratory movements of saidrod.

211. In a vibrating appartus,a=n element to be vibrated,a vibratory tens'ionedrod to which said element is connected, and electroimenetin means optionally ope 'ativeto effect powermovement-cf said element in either or 23'. Vibrating apparatus, comprising: a

member, lelectro=magnetie means; for impart- 

